In the chemical reaction shown below, which element was reduced? Zn + H2SO4 ZnSO3+ H2O Zn, because it gained 2 electrons Zn, because it lost 2 electrons S, because it gained 2 electrons S, because it lost 2 electrons

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Q: hydrogen gas reacting with oxygen to produce water vapor

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".